Back
 AiM  Vol.9 No.2 , February 2019
Comparative Antimicrobial Activities of the Gel, Leaf and Anthraquinone Fractionates of Four Aloe Species (Aloe camperi, Aloe elegans, Aloe eumassawana and Aloe scholleri)
Abstract: This study aimed to determine the medicinal significance of traditionally used Aloe plants by testing their crude extracts and Anthraquinone fractionates for antimicrobial activity against standard stock organisms. The significance of this study is to promote the discovery of new alternative to drugs currently being used. The gel and leaf cover of these four plants were extracted using cold ethanol extraction method and Anthraquinones were fractionated from the leaf cover using the liquid-liquid extraction technique. The extracts obtained were then screened in different concentrations for their antimicrobial activity against stock organisms Staphylococcus aureus (ATCC1 6538) and Escherchia coli (ATCC 25922) to access the activity of the aloe species against gram positive and gram negative bacteria. It was determined that the crude extracts of the gel and leaf part of the four aloe species had antimicrobial activity against gram positive (Staphylococcus aureus) and gram negative (Escherchia coli) bacteria and Escherchia coli showed the least sensitivity towards the four plant extracts while Staphylococcus aureus was highly susceptible.
Cite this paper: Medhin, L. , Sibhatu, D. , Seid, M. , Ferej, F. , Mohamedkassm, N. , Berhane, Y. , Kaushek, A. , Humida, M. and Gasmalbari, E. (2019) Comparative Antimicrobial Activities of the Gel, Leaf and Anthraquinone Fractionates of Four Aloe Species (Aloe camperi, Aloe elegans, Aloe eumassawana and Aloe scholleri). Advances in Microbiology, 9, 139-150. doi: 10.4236/aim.2019.92011.
References

[1]   Ahmed, M., et al. (2013) Chemical Composition and Biochemical Activity of Aloe vera (Aloe barbadensis Miller) Leaves. IJCBS, 3, 29-33.

[2]   Bassetti, A. and Sala, S. (2005) The Great Aloe Book. Zuccari Editions, 29-38.

[3]   Medhanie, G. and Dioli, M. (2006) Observations on Three Poorly Known Aloes from Eritrea Aloe schoelleri, Aloe steudneri and Aloe eumassawana. Cactus and Succulent Journal.

[4]   Bukhari, S., et al. (2017) In Vitro Antimicrobial Activity of Aloe vera Gel on Selected Urinary Pathogens. Biomedica, 33.

[5]   Waithaka, P.N., et al. (2018) Antimicrobial Properties of Aloe vera, Aloe volkensii and Aloe secundiflora from Egerton University. Acta Scientific Microbiology, 1, 6-10.

[6]   Abakar, H.O.M., et al. (2017) Antimicrobial Activity and Minimum Inhibitory Concentration of Aloe vera Sap and Leaves Using Different Extracts. Journal of Pharmacognosy and Phytochemistry, 6, 298-303.

[7]   Agrawal, P., et al. (2018) Comparative Analysis of Antimicrobial Activity of Herbal Extracts against Pathogenic Microbes. Current Trends in Biomedical Engineering & Biosciences, 16, 555930.

[8]   Malmir, M., et al. Anthraquinones as Potential Antimicrobial Agents. A. Mendez-Vilas, 55-61.

[9]   Renisheya Joy Jeba Malar, T., et al. (2012) Anti-Bacterial and Antifungal Activity of Aloe Vera Gel Extract. IJBAR, 3.

[10]   Agarry, O.O., et al. (2005) Comparative Antimicrobial Activities of Aloe vera Gel and Leaf. African Journal of Biotechnology, 4, 1413-1414.

 
 
Top